1047920 has 20 divisors (see below), whose sum is σ = 2436600. Its totient is φ = 419136.

The previous prime is 1047887. The next prime is 1047923. The reversal of 1047920 is 297401.

It is a tau number, because it is divible by the number of its divisors (20).

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6470 + ... + 6629.

It is an arithmetic number, because the mean of its divisors is an integer number (121830).

2^1047920 is an apocalyptic number.

1047920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1047920 is an abundant number, since it is smaller than the sum of its proper divisors (1388680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1047920 is a wasteful number, since it uses less digits than its factorization.

1047920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13112 (or 13106 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1047920 is about 1023.6796373866. The cubic root of 1047920 is about 101.5724768897.

The spelling of 1047920 in words is "one million, forty-seven thousand, nine hundred twenty".